Journal cover Journal topic
Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.179 IF 1.179
  • IF 5-year value: 1.107 IF 5-year
    1.107
  • CiteScore value: 2.6 CiteScore
    2.6
  • SNIP value: 0.601 SNIP 0.601
  • IPP value: 1.23 IPP 1.23
  • SJR value: 0.491 SJR 0.491
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 27 Scimago H
    index 27
  • h5-index value: 10 h5-index 10
Volume 2, issue 1
J. Micropalaeontol., 2, 111–117, 1983
https://doi.org/10.1144/jm.2.1.111
© Author(s) 1983. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 2, 111–117, 1983
https://doi.org/10.1144/jm.2.1.111
© Author(s) 1983. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Jul 1983

01 Jul 1983

Observations on surface ornamentation in fossil Ostracoda

B. Fitz-Gerald B. Fitz-Gerald
  • Postgraduate Unit of Micropalaeontology, Geology Department, University College London, Gower Street, London WC1E 6BT

Abstract. It has recently been demonstrated (Okada, 1982) that some reticulate Ostracoda develop ornamentation by a process which reflects the arrangement of underlying epidermal cells. Pitting and secondary reticulation are also characteristic of many such forms, either during ontogeny or phylogeny, and as these features are of lesser dimensions than epidermal cells, a process at variance with that described by Okada must be responsible for their production. Outlined below is evidence from fossil Ostracoda supporting the hypothesis that actual valve resorption may occur during ontogeny to produce these second order features.

Publications Copernicus
Download
Citation